South Korea, US hold joint air force firing drills

An artillery fire competition between the artillery units under the Korean People's Army Corps 7 and Corps 9 takes place at a training ground in North Korea, March 12, 2020 in this picture supplied by North Korea's Korean Central News Agency (KCNA) . KCNA via REUTERS
South Korea and the United States held joint air force drills on Friday, using F-35A fighters, in response to North Korea's test of an intercontinental ballistic missile, South Korea's defense ministry said.